1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
{% from 'conversions.cpp' import declare_enum_validation_variable %}
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file has been auto-generated by {{code_generator}}. DO NOT MODIFY!
#include "config.h"
#include "{{header_filename}}"
{% from 'conversions.cpp' import v8_value_to_local_cpp_value %}
{% macro assign_and_return_if_hasinstance(member) %}
if (V8{{member.type_name}}::hasInstance(v8Value, isolate)) {
{{member.cpp_local_type}} cppValue = V8{{member.type_name}}::toImpl(v8::Local<v8::Object>::Cast(v8Value));
impl.set{{member.type_name}}(cppValue);
return;
}
{% endmacro %}
{% for filename in cpp_includes %}
#include "{{filename}}"
{% endfor %}
namespace blink {
{% for container in containers %}
{{container.cpp_class}}::{{container.cpp_class}}()
: m_type(SpecificTypeNone)
{
}
{% for member in container.members %}
{{member.rvalue_cpp_type}} {{container.cpp_class}}::getAs{{member.type_name}}() const
{
ASSERT(is{{member.type_name}}());
return m_{{member.cpp_name}};
}
void {{container.cpp_class}}::set{{member.type_name}}({{member.rvalue_cpp_type}} value)
{
ASSERT(isNull());
{% if member.enum_values %}
NonThrowableExceptionState exceptionState;
{{declare_enum_validation_variable(member.enum_values) | indent}}
if (!isValidEnum(value, validValues, WTF_ARRAY_LENGTH(validValues), exceptionState)) {
ASSERT_NOT_REACHED();
return;
}
{% endif %}
m_{{member.cpp_name}} = value;
m_type = {{member.specific_type_enum}};
}
{{container.cpp_class}} {{container.cpp_class}}::from{{member.type_name}}({{member.rvalue_cpp_type}} value)
{
{{container.cpp_class}} container;
container.set{{member.type_name}}(value);
return container;
}
{% endfor %}
{% if container.needs_trace %}
DEFINE_TRACE({{container.cpp_class}})
{
{% for member in container.members if member.is_traceable %}
visitor->trace(m_{{member.cpp_name}});
{% endfor %}
}
{% endif %}
void V8{{container.cpp_class}}::toImpl(v8::Isolate* isolate, v8::Local<v8::Value> v8Value, {{container.cpp_class}}& impl, ExceptionState& exceptionState)
{
if (v8Value.IsEmpty())
return;
{# The numbers in the following comments refer to the steps described in
http://heycam.github.io/webidl/#es-union
NOTE: Step 1 (null or undefined) is handled in *OrNull::toImpl()
FIXME: Implement all necessary steps #}
{# 3. Platform objects (interfaces) #}
{% for interface in container.interface_types %}
{{assign_and_return_if_hasinstance(interface) | indent}}
{% endfor %}
{# 8. ArrayBuffer #}
{% if container.array_buffer_type %}
{{assign_and_return_if_hasinstance(container.array_buffer_type) | indent}}
{% endif %}
{# 9., 10. ArrayBufferView #}
{# FIXME: Individual typed arrays (e.g. Uint8Array) aren't supported yet. #}
{% if container.array_buffer_view_type %}
{{assign_and_return_if_hasinstance(container.array_buffer_view_type) | indent}}
{% endif %}
{% if container.dictionary_type %}
{# 12. Dictionaries #}
{# FIXME: This should also check "object but not Date or RegExp". Add checks
when we implement conversions for Date and RegExp. #}
if (isUndefinedOrNull(v8Value) || v8Value->IsObject()) {
{{v8_value_to_local_cpp_value(container.dictionary_type) | indent(8)}}
impl.set{{container.dictionary_type.type_name}}(cppValue);
return;
}
{% endif %}
{% if container.array_or_sequence_type %}
{# 13. Arrays/Sequences #}
{# FIXME: This should also check "object but not Date or RegExp". Add checks
when we implement conversions for Date and RegExp. #}
{# FIXME: Should check for sequences too, not just Array instances. #}
if (v8Value->IsArray()) {
{{v8_value_to_local_cpp_value(container.array_or_sequence_type) | indent(8)}}
impl.set{{container.array_or_sequence_type.type_name}}(cppValue);
return;
}
{% endif %}
{# FIXME: In some cases, we can omit boolean and numeric type checks because
we have fallback conversions. (step 17 and 18) #}
{% if container.boolean_type %}
{# 14. Boolean #}
if (v8Value->IsBoolean()) {
impl.setBoolean(v8Value.As<v8::Boolean>()->Value());
return;
}
{% endif %}
{% if container.numeric_type %}
{# 15. Number #}
if (v8Value->IsNumber()) {
{{v8_value_to_local_cpp_value(container.numeric_type) | indent(8)}}
impl.set{{container.numeric_type.type_name}}(cppValue);
return;
}
{% endif %}
{% if container.string_type %}
{# 16. String #}
{
{{v8_value_to_local_cpp_value(container.string_type) | indent(8)}}
{% if container.string_type.enum_values %}
{{declare_enum_validation_variable(container.string_type.enum_values) | indent(8)}}
if (!isValidEnum(cppValue, validValues, WTF_ARRAY_LENGTH(validValues), exceptionState))
return;
{% endif %}
impl.set{{container.string_type.type_name}}(cppValue);
return;
}
{# 17. Number (fallback) #}
{% elif container.numeric_type %}
{
{{v8_value_to_local_cpp_value(container.numeric_type) | indent(8)}}
impl.set{{container.numeric_type.type_name}}(cppValue);
return;
}
{# 18. Boolean (fallback) #}
{% elif container.boolean_type %}
{
impl.setBoolean(v8Value->BooleanValue());
return;
}
{% else %}
{# 19. TypeError #}
exceptionState.throwTypeError("The provided value is not of type '{{container.type_string}}'");
{% endif %}
}
v8::Local<v8::Value> toV8(const {{container.cpp_class}}& impl, v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
{
switch (impl.m_type) {
case {{container.cpp_class}}::SpecificTypeNone:
{# FIXME: We might want to return undefined in some cases #}
return v8::Null(isolate);
{% for member in container.members %}
case {{container.cpp_class}}::{{member.specific_type_enum}}:
return {{member.cpp_value_to_v8_value}};
{% endfor %}
default:
ASSERT_NOT_REACHED();
}
return v8::Local<v8::Value>();
}
{{container.cpp_class}} NativeValueTraits<{{container.cpp_class}}>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState)
{
{{container.cpp_class}} impl;
V8{{container.cpp_class}}::toImpl(isolate, value, impl, exceptionState);
return impl;
}
{% endfor %}
} // namespace blink
|